Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40458&t=%5B%EB%85%BC%EB%AC%B8%5D%20%EC%A7%80%EB%B0%A9%EA%B3%B5%EA%B8%B0%EC%97%85%EC%9D%98%20%EA%B2%BD%EC%98%81%EB%B6%84%EC%84%9D%EF%BC%9A%EC%A7%81%EC%98%81%EA%B8%B0%EC%97%85%EC%9D%98%20%EC%88%98%EC%9D%B5%EC%84%B1%20%EB%B0%8F%20%EC%95%88%EC%A0%95%EC%84%B1%EC%9D%84%20%EC%A4%91%EC%8B%AC%EC%9C%BC%EB%A1%9C
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40458&text=%5B%EB%85%BC%EB%AC%B8%5D%20%EC%A7%80%EB%B0%A9%EA%B3%B5%EA%B8%B0%EC%97%85%EC%9D%98%20%EA%B2%BD%EC%98%81%EB%B6%84%EC%84%9D%EF%BC%9A%EC%A7%81%EC%98%81%EA%B8%B0%EC%97%85%EC%9D%98%20%EC%88%98%EC%9D%B5%EC%84%B1%20%EB%B0%8F%20%EC%95%88%EC%A0%95%EC%84%B1%EC%9D%84%20%EC%A4%91%EC%8B%AC%EC%9C%BC%EB%A1%9C
[4] http://www.sdi.re.kr/taxonomy/term/15666
[5] http://www.sdi.re.kr/si_download/40458/6422
[6] http://www.sdi.re.kr/studies_on/15666